FSF has published a document describing the process of GPL version 3. First draft of version 3 will be released at MIT on January 16. Second draft will be published by summer 2006 and the final draft in in the fall of 2006. The final version of the license will be published in March 2007.
The process document gives us some idea of the changes that will be proposed. The Four Freedoms will be the cornerstones of the license and any suggestions will be evaluated against these basic values.
The GPL is a global license although based on the US copyright law. Copyright laws are globally quite similar because of treaties like the Berne convention, but there are local differences: moral rights, DRM, issues from contract law, etc. Because of all these differences, it is important that there is a careful review process.
The document describes the process for participation. Our research project will contribute to the discussion.